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GM UltraCruise to use Roofline Integrated LIDAR

 


GM’s Ultra Cruise will use radar, camera, and lidar to enable hands-free driving

The automaker wouldn’t reveal its lidar supplier, but it had more to say about the various sensors that will power its forthcoming Level 2 driver-assist feature.


General Motors’ next-generation Ultra Cruise driver-assist system will come equipped with lidar as well as several other high-tech sensors designed to enable hands-free driving and cover “95 percent” of driving maneuvers, the automaker announced today.

In its first major update since announcing Ultra Cruise in late 2021, the automaker outlined several of the sensors that will power the driver-assist system, including cameras, short- and long-range radar, and a lidar sensor. 

The lidar will be located inside the vehicle, behind the windshield and under the rearview mirror

According to a pair of diagrams provided by GM, the lidar will be located inside the vehicle, behind the windshield and under the rearview mirror, where other automakers typically install sensors for advanced driver-assist systems (ADAS). Cameras can be found on the sideview mirrors, short-range radar in the lower corners of the grille and rear bumper, and long-range radars underneath the hood ornament and beneath the taillights.

“This will give us a 360-degree view around the vehicle to enable us to expand this hands free driving capability to these larger domains,” Jason Ditman, chief engineer at GM, told reporters in a briefing Monday. Ditman also said that drivers would be able to use Ultra Cruise “across nearly every paved road in the US and Canada.”

Lidar, a key ingredient in autonomous driving, is a laser sensor that uses near-infrared light to detect the shapes of objects. This helps autonomous vehicles “see” other objects on the road, like cars, pedestrians, and cyclists, all without the help of GPS or a network connection.

But as lidar costs fall, other automakers have embraced the hardware for its ability to render a 3D map of its environment and all nearby objects. In addition to GM, Volvo and Mercedes-Benz have recently announced their intention to include lidar in future production vehicles. And as Ditman put it, the decision to include lidar is less about money and more about safety.

“The choice of our sensor set was really not predicated around cost,” he said. “It was really predicated around what do we think is needed in order to safely deploy this type of technology.”

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